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Curated OER
Beginning to Add Decimals Mentally
In this addition worksheet, learners solve ten math problems in which they add a single digit number and a decimal number. Students solve these problems in their head and write the answers in the boxes. The answers are available on the...
CK-12 Foundation
Estimation of Whole Number Multiplication and Division: Lettuce Garden
Estimating whole number multiplication and division is the focus of an interactive that uses a garden plot with moveable points to answer six questions.
Curated OER
Addition - Three 2-Digit Numbers
In this addition practice worksheet, students practice their computation skills as they solve 25 problems that require them to add 2-digit numbers. Each problem has 3 addends.
Curated OER
Valentine's Day Chocolates Mystery: Sums to 198 (A)
For some Valentine's Day math fun, students solve a puzzle to find how many chocolates are in the candy box. Students add two digit numbers to other two digit numbers, and each answer over 98 represents a candy in the Valentine's candy box.
Curated OER
Ten More or Ten Less
Adding and subtracting 10 is easy once you understand the tricks! Learners first write numbers that are ten more than two double-digit numbers. Then, they find numbers ten less than two other double-digit numbers. An explanation on the...
Curated OER
Standard written method for addition of 2-digits
In this addition worksheet, students learn how to add two 2-digit numbers together. They then use what they read to solve the 12 addition problems. That answers are on the last page.
Curated OER
Addition: 2-Digit plus 2-Digit, No Regrouping
In this addition learning exercise, students complete 30 problems, adding two, 2-digit numbers-no remainders. Worksheet includes links to answers and additional worksheets.
Curated OER
Addition: Two Digit Mental Addition
In this 2-digit addition worksheet, students learn how to solve 2-digit math problems in their heads instead of on paper. They then solve the 20 problems on the worksheet. The answers are on the last page.
Curated OER
Two Plus One Digit Addition
In this addition practice instructional activity, learners practice their computation skills as they solve 40 problems that require them to add 2-digit numbers to 1-digit numbers.
Curated OER
Addition Worksheet
In this addition worksheet, students add two digit to two digit numbers. No regrouping is required to complete this worksheet.
Curated OER
Addition Worksheet
In this addition worksheet, students add together double digit numbers to find the sum of each problem. Students solve 20 addition math problems.
Curated OER
2 Digit Addition With Regrouping
For this addition practice worksheet, students solve 20 problems that require them to add 2-digit numbers to 1 or 2-digit numbers with regrouping. A number line is provided.
Curated OER
2 Digit Addition Without Regrouping
In this addition practice worksheet, learners solve 20 problems that require them to add 2-digit numbers to 2-digit numbers without regrouping.
Curated OER
Doubling Two Digits (No Carrying)
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
Curated OER
Crabby Math
Here are 4 different (yet related) worksheets and an answer key for each. The class will work through each sheet, adding single-digit number to find sums. They then color in the sums that meet each worksheets instructions. For example:...
Curated OER
Addition of Negative Numbers
In this addition worksheet, students add two one-digit and two-digit negative numbers with regrouping. Students solve fifteen online interactive problems.
Curated OER
Counting by 3s, 4s, and 5s
Skip count along the mushrooms to complete these number sentences which give young scholars an introductory look at addition and subtraction. Starting from five double-digit numbers, they subtract or add by threes, fours, and fives to...
Curated OER
Adding Mixed Fractions (B)
Use this addition worksheet to have your learners add mixed numbers with one-digit and two-digit denominators. They solve 10 problems.
CK-12 Foundation
Addition and Multiplication Properties with Real Numbers: The Secret of Subtraction
An interactive boosts mathematicians' knowledge of subtracting integers using a horizontal number line by way of multiple-choice, true or false, and discussion questions.
Curated OER
Add One-Digit Numbers to Two-Digit Numbers
In this addition with carrying instructional activity, students solve 7 problems in which two digit numbers are added to single digit numbers with carrying.
Curated OER
Model Adding 2-Digit Numbers
In this adding two-digit word problems worksheet, students and equations with and without regrouping. Students solve six problems.
Curated OER
Add Different Digits - Vertical
In this finding the sums instructional activity, students add mixed numbers from two-digits to five digits with regrouping. Students solve 12 problems.
Curated OER
Mentally Add and Subtract 10 or 100
Get your mental mathletes in top form with this number sequence worksheet! They must add or subtract 10 from a number to complete these number lines, finding the missing three-digit numeral from a list of answers. Encourage verbal or...
Curated OER
Add With No Regrouping
In this finding the sums worksheet, students add one digit-numbers plus two-digit numbers with no regrouping. Students solve 30 problems.
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